CN109139397B

CN109139397B - A support device for internal cables of wind turbines

Info

Publication number: CN109139397B
Application number: CN201811209478.XA
Authority: CN
Inventors: 陈生明; 张�浩; 王凯
Original assignee: HEFEI LISTEN NEW ENERGY TECHNOLOGY CO LTD
Current assignee: Chongqing City South Flame Retardant Wire And Cable Co ltd
Priority date: 2018-10-17
Filing date: 2018-10-17
Publication date: 2020-04-14
Anticipated expiration: 2038-10-17
Also published as: CN109139397A

Abstract

The invention discloses a support device for an internal cable of a wind power generator, and relates to the technical field of wind power generation equipment. The invention includes a support; an arc-shaped plate is arranged on the inner side of the support; a fixed plate is fixedly connected with an opposite inner side of the support; the fixing plate is slidably fitted with a fixing device through a through hole; Fixtures. By installing the fixing device and the arc-shaped plate on the support, the invention buffers, fixes and supports the cable; it solves the problems that the existing cable is prone to wear and the connection port is subject to large tensile force and is prone to transmission failure; The cables are fixed separately, which solves the problem that the existing cables are prone to torsion damage.

Description

Supporting device for internal cable of wind driven generator

Technical Field

The invention belongs to the technical field of wind power generation equipment, and particularly relates to a supporting device for an internal cable of a wind driven generator.

Background

Wind generators require frequent yawing to obtain larger wind generator nacelles to align the impeller with the wind direction; cables in the generator cabin extend to the tower body from the generator cabin, and the cables are easy to twist and wear to damage when the generator cabin deflects, so that potential safety hazards exist; in the prior art, U-shaped wire chases are arranged at a generator room and a tower body to support a cable, so that the cable and the tower body are prevented from being abraded; however, when the engine room rotates, the cable of the cable overhanging section in the tower body swings and still can be abraded with the wire groove, meanwhile, the cable is not provided with a fixing device, and the wiring port of the cable bears large pulling force during swinging, so that the cable is easy to break away, transmission faults are caused, and the maintenance cost is increased.

Disclosure of Invention

The invention aims to provide a supporting device for an internal cable of a wind driven generator, which is characterized in that a fixing device and an arc-shaped plate are arranged on a support to buffer, fix and support the cable; the problems that the existing cable is easy to wear and the transmission fault is easy to occur due to the fact that the connecting port bears large tensile force are solved; meanwhile, the cable is separately fixed through the fixing device, and the problem that the existing cable is easily twisted and damaged is solved.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a supporting device for an internal cable of a wind driven generator, which comprises a support; the support is of a U-shaped structure; the inner side surface of the support is provided with an arc-shaped plate;

the inner side surface of the support is fixedly connected with a fixing plate; through holes are uniformly distributed on the side surface of the fixing plate; a through hole and a waist-shaped hole are formed in the opposite side surface of the support in parallel;

the inner surface of the through hole is in sliding fit with a fixing device;

the inner surfaces of the two ends of the arc-shaped plate are fixedly connected with limiting rods; the limiting rod is matched with the through hole; the peripheral side surface of the other limiting rod is in sliding fit with the inner surface of the waist-shaped hole; a plurality of guide sleeves are arrayed on the outer surface of one end of the arc-shaped plate;

a plurality of fixing devices are matched on the inner surface of the guide sleeve in a sliding manner;

the fixing devices in sliding fit with the inner surfaces of the through hole and the guide sleeve respectively comprise arc-shaped clamping sleeves which are arranged oppositely; two ends of the two arc-shaped clamping sleeves are fixedly connected through oppositely arranged clamping rings;

the circumferential sides of the two ends of the arc-shaped clamping sleeve are respectively provided with a channel; the clamping ring comprises an outer ring; the outer side surfaces of two ends of the outer ring are fixedly connected with mounting lugs; and the inner side surface of the outer ring is fixedly connected with a check ring matched with the channel.

Furthermore, the lower surface of the support is rotatably connected with a bottom plate through a rotary support seat.

Further, the arc-shaped plate is an alloy spring steel plate; the outer surface of the arc plate is provided with a plurality of heat dissipation holes in an array mode.

Furthermore, the two limiting rods are connected through the first elastic piece.

Furthermore, the side surface of the arc-shaped cutting sleeve is provided with a second elastic piece in parallel; the inner surface of the arc-shaped clamping sleeve is fixedly connected with a rubber pad.

The invention has the following beneficial effects:

1. the fixing device and the support are arranged, so that the cable is effectively fixed, the condition that the suspended cable is separated from the wiring port or the wiring port is damaged due to large weight is prevented, and the use safety of the cable is improved.

2. According to the invention, the second elastic piece is arranged on the fixing device to buffer the front and back movement of the fixing device, and the arc-shaped plate is arranged to buffer the swinging of the suspended cable, so that the damage of the swinging of the cable to the pulling of the cable is effectively reduced, and the service life of the cable is prolonged.

3. According to the invention, each cable is separately fixed by using the fixing device, so that the friction among the cables is reduced, and the cables are twisted and wound mutually; meanwhile, the cable can be effectively guaranteed to have a good heat dissipation effect.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a supporting device for an internal cable of a wind turbine according to the present invention;

FIG. 2 is a front view of the structure of the drawing;

FIG. 3 is a schematic structural view of a support;

FIG. 4 is a schematic structural view of an arc plate;

FIG. 5 is a schematic view of the fixing device;

fig. 6 is a schematic structural view of an arc-shaped ferrule;

FIG. 7 is a schematic structural view of a snap ring;

in the drawings, the components represented by the respective reference numerals are listed below:

1-support, 2-arc plate, 3-fixing device, 11-rotary support seat, 12-bottom plate, 101-fixing plate, 102-through hole, 103-through hole, 104-waist-shaped hole, 201-limiting rod, 202-guide sleeve, 203-heat dissipation hole, 204-first elastic element, 301-arc cutting sleeve, 302-snap ring, 303-second elastic element, 3011-groove channel, 3021-outer ring, 3022-mounting lug and 3023-retainer ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "one end," "bottom," "middle," "side," "inner," "around," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

Referring to fig. 1, the present invention is a supporting device for an internal cable of a wind turbine, including a support 1; the support 1 is of a U-shaped structure; the inner side surface of the support 1 is provided with an arc-shaped plate 2;

a fixing plate 101 is welded on the inner side surface of the support 1; through holes 102 are uniformly distributed on the side surface of the fixing plate 101; one opposite side surface of the support 1 is provided with a through hole 103 and a waist-shaped hole 104 in parallel;

as shown in fig. 2, the lower surface of the support 1 is rotatably connected with a bottom plate 12 through a rotary support seat 11; the support 1 can freely rotate along with the cable, so that the abrasion of the cable and the damage caused by frequent bending are effectively reduced;

the fixing device 3 is in sliding fit with the inner surface of the through hole 102;

as shown in fig. 3, limiting rods 201 are welded on the inner surfaces of both ends of the arc-shaped plate 2; one limiting rod 201 is matched with the through hole 103, preferably in clearance fit; the peripheral side surface of the other limiting rod 201 is in sliding fit with the inner surface of the waist-shaped hole 104, so that the arc-shaped plate 2 is elastically deformed to have a certain deformation gap, and the stability of the arc-shaped plate 2 is improved; the guide sleeves 202 are welded on the outer surface of one end of the arc-shaped plate 2 in an array mode; the inner surface of the guide sleeve 202 is in sliding fit with the fixing device 3;

as shown in fig. 5, the fixing devices 3 slidably engaged with the through hole 102 and the inner surface of the guide sleeve 202 each include two arc-shaped ferrules 301 arranged oppositely; two ends of the two arc-shaped clamping sleeves 301 are fixedly connected through clamping rings 302 which are oppositely arranged;

as shown in fig. 6, the circumferential sides of the two ends of the arc-shaped cutting sleeve 301 are respectively provided with a channel 3011;

as shown in fig. 7, the snap ring 302 includes an outer race 3021; the outer side surfaces of two ends of the outer ring 3021 are fixedly connected with mounting lugs 3022; a retainer ring 3023 matched with the channel 3011 is fixedly connected to the inner side surface of the outer ring 3021; the mounting lug 3022 is provided with a step through hole, and the two arc-shaped cutting sleeves 301 are clamped on the periphery of the cable and then are arranged in the through hole 102 and the guide sleeve 202; then the arc-shaped clamping sleeves 301 are respectively fixed through the clamping rings 302; the two snap rings 302 are fixed by the mounting lugs 3022 connecting bolts.

As shown in fig. 4, the arc-shaped plate 2 is an alloy spring steel plate; the heat dissipation holes 203 are arrayed on the outer surface of the arc-shaped plate 2, and the heat dissipation holes 203 can effectively increase the heat dissipation effect of the cable and increase the adaptability of the cable in a hot environment.

As shown in fig. 2, the two position-limiting rods 201 are connected by a first elastic member 204, and the first elastic member 204 is preferably a spring; the first elastic element 204 can improve the deformation resistance of the arc-shaped plate 2, and prevent the arc-shaped plate 2 from reducing the deformation resistance and losing the buffer capacity due to the long-time weight of the cable.

As shown in fig. 5, two second elastic members 303 are arranged on the side surfaces of the arc-shaped ferrule 301 in parallel, the second elastic members 303 can be springs or elastic washers, and when the cable is installed, the two second elastic members 303 are respectively positioned on the two sides of the fixing plate 101 and the two sides of the guide sleeve 202, so that the fixing device 3 is buffered when moving back and forth, the damage to the cable caused by the pulling impact of the cable swing on the cable is effectively reduced, and the service life of the cable is prolonged;

the rubber pad is glued or directly nested on the inner surface of the arc-shaped clamping sleeve 301, so that the friction force on the cable can be effectively improved, the fixing effect can be increased, and the situation that the cable is crushed or the cable is abraded and damaged by the arc-shaped clamping sleeve 301 due to the fact that the cable is directly extruded by the arc-shaped clamping sleeve 301 can be effectively prevented; the inner surfaces of the two ends of the arc-shaped clamping sleeve 301 are rounded, so that the protection of the cable is improved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A support device for an internal cable of a wind driven generator is characterized in that: comprises a support (1); the support (1) is of a U-shaped structure; the inner side surface of the support (1) is provided with an arc-shaped plate (2);

a fixing plate (101) is fixedly connected to the inner side surface of the support (1); through holes (102) are uniformly distributed on the side surface of the fixing plate (101); a through hole (103) and a waist-shaped hole (104) are arranged in parallel on one opposite side surface of the support (1);

the inner surface of the through hole (102) is in sliding fit with a fixing device (3);

the inner surfaces of two ends of the arc-shaped plate (2) are fixedly connected with limiting rods (201); the limiting rod (201) is matched with the through hole (103); the peripheral side surface of the other limiting rod (201) is in sliding fit with the inner surface of the waist-shaped hole (104); a plurality of guide sleeves (202) are arrayed on the outer surface of one end of the arc-shaped plate (2);

the inner surface of the guide sleeve (202) is in sliding fit with a plurality of fixing devices (3);

the fixing devices (3) which are in sliding fit with the inner surfaces of the through hole (102) and the guide sleeve (202) respectively comprise arc-shaped cutting sleeves (301) which are arranged oppositely; two ends of the two arc-shaped clamping sleeves (301) are fixedly connected through clamping rings (302) which are oppositely arranged;

the circumferential sides of the two ends of the arc-shaped clamping sleeve (301) are respectively provided with a channel (3011); the snap ring (302) includes an outer race (3021); the outer side surfaces of two ends of the outer ring (3021) are fixedly connected with mounting lugs (3022); and the inner side surface of the outer ring (3021) is fixedly connected with a retainer ring (3023) matched with the channel (3011).

2. The supporting device for the internal cable of the wind driven generator as claimed in claim 1, wherein the lower surface of the support (1) is rotatably connected with a bottom plate (12) through a rotary supporting seat (11).

3. The supporting device for the internal cables of wind generators according to claim 1, characterized in that the arc-shaped plates (2) are alloy spring steel plates; a plurality of heat dissipation holes (203) are arrayed on the outer surface of the arc-shaped plate (2).

4. The supporting device for the internal cable of the wind driven generator as claimed in claim 1, wherein the two limiting rods (201) are connected through a first elastic member (204).

5. The supporting device for the internal cable of the wind driven generator as claimed in claim 1, wherein the arc-shaped ferrule (301) is provided with a second elastic member (303) at the side in parallel; the inner surface of the arc-shaped clamping sleeve (301) is fixedly connected with a rubber pad.